ui: add 'Esc' shortcut to update popup, refs #629
ui: fixed 'Esc' shortcut on Recommended Settings button, refs #658
misc: added missing translation
Merge pull request #101 from saukko28/master

misc: code cleanup
cgame: don't show browning icon for stationary MGs fixes #660
cgame: display mounted tank/MG in fireateam window, fixes #659
misc: always stay up-to-date with master branch of git submodules
cgame: don't draw fireteam window for spectators fixes #635
misc: README.md enhancement
renderercommon: removed libjpeg hardcheck, refs #329

Libjpeg-turbo shipped by Fedora (with v6 API/ABI) now includes jpeg_mem_src() function.
cgame:  don't play "I need a medic!" sound sound when killed inside
tank or by flamer fixes 653
Merge branch 'master' of https://github.com/etlegacy/etlegacy.git
renderer2: uncrustify
client: zero offset message commented fixes #575
misc: more code cleanup